Rockwell-automation 1732E-OB8M8SR EtherNet/IP Dual Port 8-Point SOE In Manual de usuario descargar pdf (Pagina 66)

56 Rockwell Automation Publication 1732E-UM003B-EN-E - March 2014

Chapter 8 Specific Features of the 1732E-IB8M8SOER Sequence of Events Input Module

• Scenario #1 (no bounce) – The input turns ON and remains for the full

2 ms. In this case, the module considers the transition valid and sends the

data recorded at the transition to the controller.

Note the input was sampled as being on three different times: 0 ms, 1 ms

and 2 ms.

• Scenario #2 – The input turns ON but turns OFF before 2 ms (length of

the input filter setting) elapses. In this case, the module continues to scan

the input every millisecond. At some point, less than 2 ms later, the input

turns ON again and remains for 1 to 2 ms, the third ON sampled 1 ms

interval (in this case at 6 ms). In this case, the module considers the

transition valid and sends the data timestamped at the original transition

to the controller.

012345678

Input turns ON;

timestamp recorded

Time in milliseconds

Input remains ON for at least 2 ms; transition is considered

valid and the timestamp is sent to the controller

43671

012345678

Time in milliseconds

Input turns ON and remains ON for

1…2 ms.

The module sends the timestamp recorded

at the original transition point to the

controller.

Input turns OFF before 2 ms have elapsed.

43672

Input turns ON;

timestamp recorded

1 2 ... 61 62 63 64 65 66 67 68 69 70 71 ... 145 146

Sin comentarios

Rockwell-automation 1732E-OB8M8SR EtherNet/IP Dual Port 8-Point SOE In Manual de usuario Pagina 66